Drag one finger on the well to slide the piece across the opening. Double tap drops it.

Tap the buttons, or use two fingers: twist to spin it flat, swipe left or right to roll it, swipe up or down to tip it over.

The grey shadow shows where it lands. Down nudges one layer; DROP sends it all the way.

7 × 7 full and the layer clears; everything above sinks. Colour tells you how deep.

←→↑↓ or WASD, or drag with the mouse

Z Spin X Roll C Tip (2012 keys: Shift+→, Ctrl+→, Ctrl+↑)

F or the wheel: one layer · Space drop

Colour tells you how deep. Right-drag to peek down the sides. P or Esc pauses, M mutes.

Left stick or D-pad

X Spin B Roll Y Tip

RT down one layer · A drop

Colour tells you how deep. Hold the right stick to peek; Menu pauses.